Check-rower for corn-planters



(No Model.)

J. H. MONTGOMERY.

GHBGK ROWER FOR CORN PLANTERS.

Patented June 23, 1885.

FIG: 8

cam 4% JAMES HMONTGOMERY.

N. PETERS Phnlo-Limcgnphnr. wam m n a UNITED STATES PATENT OFFICE.

JAMES H. MONTGOMERY, OF ELIVIN, ILIJINOIS.

CHEC K-ROWER FOR CORN-PLANTERS.

SPECIFICATION forming part of Letters Patent No. 320,673, dated June 23, 1885.

Application filed August 6, 1883.

Rowers for'Oorn-Planters, of which the follow ing is a specification.

My invention relates to that class of checkrowers in which the seed-slides of the cornplanter are operated through oscillating levers which receive motion from knot-s or stops on a check-row wire.

The object of my invention is to impart the motion of the oscillating levers to the seedslides in as direct a manner as possible; and I effect this result by oscillating the levers on a horizontal plane and connecting them with the gear-wheel that operates the seed-slides in such a manner that every oscillation will produce a one-fourth revolution in said gearwheel, lock the same, and effect a drop in corn-planter.

In the drawings accompanying and forming a part of this specification, Figure l is a plan of my device, showing the general arrangement of the parts. Fig. 2 is a side elevation of the central portion of the same. Fig. 3 is a view of the rotating gear-wheel inverted, and Fig. 4 is an enlarged plan of the central portion of my check-rower. Fig. 5 is an inverted view of the device used to rotate and lock the central gear-wheel. Fig. 6 is a sectional view of Fig. 2 on dotted line new, showing the construction of the device used to guide the motion of the bar that connects the central gear-wheel with the oscillating levers. Fig. 7 is a sectional view of the stop on the wire; Fig. 8, an end view of the same, and Fig. 9 a side elevation of an upward projection on the upper surface of the central gearwheel.

A is the check-row bar.

a is a centrally-located intermittently-rotating plate provided with segmental recesses a and ratchet-projections I).

m is a bent lever attached to the end of the check-row bar in such a manner that the stops on the wire will cause it to move on a hort zontal plane. v

To lever m is attached a connecting rod which terminates in a pawl-and-lock device, 0, which is used to intermittently rotate plate a.

(No model.)

Integral with plate a is gear-wheel s, which imparts motion to pinion 1'.

fis a crank-pin on pinion r, and g is a rod that connects the same with the seed-slides of the planter.

d shows a curved surface on the side of the reciprocating drive-rod, and e c are lateral guides therefor.

q is a guide-rod that co-operates with 6, Fig. 6, to limitthe vertical motion of the drive rod 0 d.

h 'i show gearing used to shift the motion of the lever. y

k k are springs that return rods 0 d after a stroke has been efi'ected by the oscillating levers.

p p are projections that engage the rim of plate a.

b in Fig. 9 shows a projection on ratchet b.

'0 is the stop on the wire, which is in the form of a hollow ellipse. It is constructed open, as shown in Fig. 8, and afterward closed around the ends of wire a n in such a manner that a swivel-joint is formed.

it '0 shows the construction of the wire ends by means of which the swivel-joint is effected, a representing a longitudinal and o a diametrical bend thereof.

tin Fig. 3 are ratchet-teeth on the lower surface of wheel 8.

In operation,aslevermisthrown by the check row wire, the point 0", Fig. 5, presses against a projection, b, and imparts a quarter-revolution to platea and wheels. This motionbrings 0 into the position indicated in Fig. 4,, where a projection is shown in the recess 0. As the above-mentioned stroke is made by one rod, 0 (Z, the pawl c of the opposite and dormant rod slides over a projection. b, and drops be hind the same, forming a stop to all retrograde motion, while a spring, k, immediately carries the operating-rod back to its original position. As indicated in Fig. 4, every stroke of the drive-rod is completed by carrying a projection, 1), into recess 0 and against the rim thereof, thus forming a complete stop to forward motion in the plate a. The point 0" of c, Fig. 5, passes under rim b of b, Fig. 9, and vertical misplacement is further guarded against by causing projections 11 to engage plate a at the termination of every stroke. In making a stroke the point a of c describes the segment of a circle and this motion is made possible by the segmental f0rmation of d, which presses steadily against a throughoutthe stroke. Pinion 1" makes a semirevolution at every quarter-revolution of wheel 8, and recesses a permit the crank-pin f to pass plate a without coming in contact therewith.

It will be understood that one drive-bar and lever receives motion from the check-row wire as the planter crosses the field, and when a return is made the wire is shifted and the opposite bar and lever utilized. Thus the operation of saidbars is alteriiate, one always lying dormant while the field is traversed, and operating simply as a pawl to prevent backward motion in the plate a.

When it is not desirable to rely on the dormant drive-bar to prevent back motion, I attach a pawl to the check-row bar beneath 'wheel 8 and throw the same in contact with ratchet-teeth t, Fig. 3.

Guiderod q permits the point of c to raise over projections b, but effectually prevents farther vertical motion.

I claim- 1. In a check-rower for corn-planters, the combination of a rotating plate provided with a series of projections, and reciprocating pushbars provided with vertical concavities c in their ends adapted to engage with projections of the plate,and also provided with segmental recesses c that conform to the outline of said projections and effect an absolute stop in the plate when the stroke of the push-bar is completed, as set forth.

2. In a check-rower, the plate (I, having inclined projections I), provided with rims b, as and for the purpose set forth.

3. In a check-rower, the projections 12, in combination with drive-bar c d and plate a, as and for the purpose set forth.

JAMES H. MONTGOMERY.

At-test:

I. D. WALKER, J ESSE W. WEIK. 

